…The Great Lakes: An AGW Showpiece…
The Great Lakes have been used by AGW (Anthropogenic Global Warming) extremists to create fear … the fear of devastating consequences from global warming and climate change.
However, they have used the Great Lakes as Exhibit One for both extremes:
First, for when there was a drought, then for when there was flooding.
In other words, no matter what happens, it’s always due to CO2 induced global warming and climate change.
The Wall Street Journal recently ran a story about flooding in the Great Lakes and quoted a professor of climate science from the University of Michigan who said, “Climate change was likely driving the volatility.”
But it was only a few years ago, in 2017, that the National Geographic magazine ran a spread on how climate change was affecting the world, including the Great Lakes, The National Geographic said:
“The Great Lakes hold a fifth of Earth’s surface fresh water, and they’ve shrunk dramatically. If it keeps up, shipping and fisheries could be left high and dry.”
From overflowing to shrinking lakes, climate change is the cause.
The Great Lakes is a treasure, not only as a natural resource, but also because there is a record of surface water levels going back to the 1800s.
NOAA’s website has an interactive display that goes back to 1917.
It’s obvious from a cursory look at the screenshot that water levels have varied widely over the past century, and right up to today.
The fact is, climate is always changing and has very little to do with atmospheric levels of CO2.
Lowest water levels were:
- Lake Superior, in 1926
- Lakes Michigan-Huron, in 1964
- Lake Erie, between 1934 and 1936
- Lake Ontario, in 1965
Like so many claims by AGW proponents, the facts about water levels in the Great Lakes show that their claims of pending disaster are false.
The Great Lakes are a national treasure, not an AGW barometer.
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